{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["message topic", "entity destination", "content container"], "input": "the optical signal is generated by an externally modulated tunable laser , and introduced to the chip through a tapered fiber ."}
{"message topic": [], "entity destination": [], "content container": []}